Q: What are the prime factors of the number 138,029,936?

 A: 2, 11, 17, 46133

Why are those the prime factors of the number 138,029,936?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 138,029,936

138,029,936
Factor Arrows
269,014,968
Factor Arrows
234,507,484
Factor Arrows
217,253,742
Factor Arrows
28,626,871
Factor Arrows
11784,261
Factor Arrows
1746,133

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 11, 17, 46133

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 17 x 46,133 = 138,029,936

This can also be written as 24 x 111 x 171 x 46,1331 = 138,029,936

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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